HCID 67581923, compound → HCID 53859577, compound

Participants

Reaction Steps

To a solution of 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[(3R)-(3,4-dihydroxybutan-1-yl)oxy]quinazoline (4.23 g) in methanol (40 ml) is added 10% palladium/carbon (634 mg), and the mixture is stirred under hydrogen atmosphere and under atmospheric pressure at room temperature for 18.5 hours. The reaction mixture is filtered, and the filtrate is evaporated to dryness under reduced pressure, and the residue is washed with acetone to give 4-[(3R)-(3,4-dihydroxybutan-1-yl)oxy]-2-(1-piperazinyl)quinazoline (2.13 g) as crystals. A part of the product is recrystallized from ethanol to give a product having the following physical properties.

Provenance & Evidence